"Should I report this?" To who? And for what reason?
"Isnt it wrong for a 32 year old woman to be hooking up with a 17 year old guy casually?" Well, wrong or right depend on your moral code.What you feel is right or wrong may not match what either one of them think.
It is only illegal in Arizona, California, Delaware, Florida, Idaho, Kentucky, North Dakota, Oregon, Tennessee, Utah, Virginia, and Wisconsin. The age of consent in the remaining states is either 16 (30 states) or 17 (8 states).
So, unless it is illegal in your state, how is it any of your business?